Airport Noise Estimation within the Conceptual Design Study on LH2-Fueled Supersonic Transport
- Resource Type
- Journal Article
- Authors
- Kenichi RINOIE; Tatsunori YUHARA; Yoshikazu MAKINO
- Source
- TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, AEROSPACE TECHNOLOGY JAPAN. 2017, 15:1
- Subject
- Airport Noise
Conceptual Design
LH2
Supersonic Transport
- Language
- English
- ISSN
- 1884-0485
This paper evaluates the reduction of airport noise that can be expected from an optimized LH2-fueled SST due to its shorter takeoff and landing performance compared to an equivalent kerosene-fueled SST. An initial comparison shows that flyover noise is reduced by 7.7EPNdB since the LH2-fueled SST has a steeper climb following a shorter takeoff roll. Although sideline and approach noises are increased, the total cumulative loudness is reduced by 6.5EPNdB. Then, the effect of reduced-thrust takeoff is evaluated for the LH2-fueled SST, which has a takeoff performance surplus. The result shows the sideline noise is reduced while flyover noise is increased. A parametric study is also conducted for further airport noise reduction potential.